How to recruit supporters into our street team?

As a local team sports manager, I’m organizing a football face-off with another club sports team. This is an event I’m going to hold the first time after COVID-19. We can come out with outdoor billboard advertising initially to send out the message of this event. I’ve heard of street team marketing for the music industry, so why not for sports teams, primarily when we can recruit loyal fans to be a part of our street team. But how to recruit supporters into our street team? So, what do you guys think? If you know any other ways that will work well, please share it.